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Geology, mineralogy, petrology and geochemistry of the volcanic island of 'Ata, Tonga.

Description:
Ata is the most southerly island in a chain of young volcanic islands in the Tonga Group lying to the west of the Tonga trench. It is presently inactive and now consists of a small remnant (1.8 km2) of a large composite volcano which had at least four main centres of eruption. The lavas are mainly porphyritic basaltic andesites, with minor phenocryst - poor basalts, and are dominanted by phenoc...
Display date:
1980
Location:
Tonga
Format:
Scholarly text
Collections:
Otago University Research Archive
Contributors:
Reay, Anthony
Publisher:
University of Otago
Content partner:
University of Otago
Availability:
Not specified
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